<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        var name = prompt('请输入您的姓名')
        var num = prompt('请输入您的年龄')
        var one = prompt('请输入您的性别')
        alert('您的姓名是:' + (name) +'\n' +
              '您的年龄是:' + (num) +'\n' +
              '您的性别是:' + (one)
        )
    </script>
</head>
<body>
    
</body>
</html>